Wiktionary
branch out
vb. 1 to expand in the manner of branches 2 (context idiomatic English) to attempt something new or different, but related
WordNet
branch out
v. vary in order to spread risk or to expand; "The company diversified" [syn: diversify, broaden] [ant: specialize, specialize]
Usage examples of "branch out".
He ripped that branch out of its trunk and hurled it uphill and across the cut toward the soldiers.